Question

我想用Hibernate配置Spring应用程序。我尝试过：

主要启动方法：

@Configuration
@EnableWebMvc
public class WebConfig implements WebApplicationInitializer, WebMvcConfigurer {

    private BasicAuthenticationInterceptor basicAuthenticationInterceptor;

    @Override
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        converters.removeIf(converter -> converter instanceof MappingJackson2XmlHttpMessageConverter);
        converters.removeIf(converter -> converter instanceof MappingJackson2HttpMessageConverter);
        converters.add(new MappingJackson2XmlHttpMessageConverter(
                ((XmlMapper) createObjectMapper(Jackson2ObjectMapperBuilder.xml()))
                        .enable(ToXmlGenerator.Feature.WRITE_XML_DECLARATION)));
        converters.add(new MappingJackson2HttpMessageConverter(
                createObjectMapper(Jackson2ObjectMapperBuilder.json())));
    }

    private ObjectMapper createObjectMapper(Jackson2ObjectMapperBuilder builder) {
        builder.indentOutput(true);
        builder.modules(new JaxbAnnotationModule());
        builder.serializationInclusion(JsonInclude.Include.NON_NULL);
        builder.defaultUseWrapper(false);
        return builder.build();
    }

    @Override
    public void onStartup(ServletContext container) {
        // Create the 'root' Spring application context
        AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
        rootContext.register(ContextDatasource.class);

        // Manage the lifecycle of the root application context
        container.addListener(new ContextLoaderListener(rootContext));

        // Create the dispatcher servlet's Spring application context
        AnnotationConfigWebApplicationContext dispatcherContext = new AnnotationConfigWebApplicationContext();

        // Register and map the dispatcher servlet
        ServletRegistration.Dynamic dispatcher = container.addServlet("dispatcher", new DispatcherServlet(dispatcherContext));
        dispatcher.setLoadOnStartup(1);
        dispatcher.addMapping("/");
    }

    @Autowired
    public void setBasicAuthenticationInterceptor(BasicAuthenticationInterceptor basicAuthenticationInterceptor) {
        this.basicAuthenticationInterceptor = basicAuthenticationInterceptor;
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(basicAuthenticationInterceptor);
    }

}

从rootContext.register(ContextDatasource.class);调用的休眠配置：

@SpringBootApplication
@Configuration
@EnableTransactionManagement
public class ContextDatasource {

    @Bean
    public FastJsonHttpMessageConverter fastJsonHttpMessageConverter() {
        return new FastJsonHttpMessageConverter();
    }

    @Bean
    @Autowired
    public HttpMessageConverters convertersToBeUsed(FastJsonHttpMessageConverter converter) {
        return new HttpMessageConverters(converter);
    }

    @Bean
    public LocalSessionFactoryBean getSessionFactory() throws NamingException {
        final LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
        sessionFactory.setDataSource(getDataSource());
        sessionFactory.setPackagesToScan(new String[] { "org.datalis.plugin.database.models" });
        sessionFactory.setHibernateProperties(hibernateProperties());

        return sessionFactory;
    }

    @Bean
    public DataSource getDataSource() throws NamingException {
        return (DataSource) new JndiTemplate().lookup("java:/global/production_gateway");
    }

    @Bean
    public PlatformTransactionManager getHibernateTransactionManager() throws NamingException {
        final HibernateTransactionManager transactionManager = new HibernateTransactionManager();
        transactionManager.setSessionFactory(getSessionFactory().getObject());
        return transactionManager;
    }

    @Bean
    public PersistenceExceptionTranslationPostProcessor getExceptionTranslation() {
        return new PersistenceExceptionTranslationPostProcessor();
    }

    private final Properties hibernateProperties() {
        final Properties hibernateProperties = new Properties();
        hibernateProperties.setProperty("hibernate.hbm2ddl.auto", "create-drop");
        hibernateProperties.setProperty("hibernate.dialect", "org.hibernate.dialect.MariaDBDialect");

        hibernateProperties.setProperty("hibernate.show_sql", "true");
        hibernateProperties.setProperty("hibernate.format_sql", "true");
        return hibernateProperties;
    }
}

但是当我部署WAR文件时，出现错误：

Caused by: java.lang.NoSuchMethodException: org.springframework.boot.autoconfigure.http.HttpMessageConverters$$EnhancerBySpringCGLIB$$1d90bff9.<init>()
    at java.base/java.lang.Class.getConstructor0(Class.java:3302)

完整错误堆栈： https://pastebin.com/x30W2aws

您能给我什么地方出错的建议，以及如何解决该问题？我是否需要使用其他配置来实现模块启动？

编辑：使用Java 8，代码可以正常工作而不会出现上述问题。在最新的Java 10中，我遇到了上述异常。你知道我需要做什么配置吗？

Answer 1

根据create，Spring Boot 2.0.1及更高版本支持Java 10。没有依赖项列表，就不可能知道这是否是问题所在，但这似乎是一个不错的起点。

您是否正在运行Boot v2.0.1或更高版本？

NoSuchMethodException：org.springframework.boot.autoconfigure.http.HttpMessageConverters

1 个答案: